Many of the smaller bikes? Some of them My older 250 had one in the tank too, but my 9 has it inline with the fuel line to the carbs. Kinda hard to miss.rick said:I don't actually know so, I should probably shut up but, on many bikes it's actually inside tha gas tank (attached to the top of the petcock). I know it is an an EX250 because I happen to have one in front of me
If not, it should be a pretty obvious hunk of plastic on the bigger tube running from the tank to the carbs.